package com.yueqianshop.auth.controller;

import com.alibaba.fastjson.TypeReference;
import com.yueqianshop.auth.feign.MemberFeignService;
import com.yueqianshop.auth.feign.ThirdPartFeignService;
import com.yueqianshop.auth.vo.UserLoginVo;
import com.yueqianshop.auth.vo.UserRegistVo;
import com.yueqianshop.common.constant.AuthServerConstant;
import com.yueqianshop.common.utils.R;
import com.yueqianshop.common.vo.MemberRespVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.properties.bind.BindResult;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import javax.validation.constraints.NotEmpty;
import java.lang.reflect.Member;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

@Controller
public class LoginController {

    @Autowired
    ThirdPartFeignService thirdPartFeignService;

    @Autowired
    StringRedisTemplate redisTemplate;

    @Autowired
    MemberFeignService memberFeignService;




    @GetMapping("/reg.html")
    public String regPage(){
        return "reg";
    }

    @ResponseBody
    @GetMapping("/sms/sendcode")
    public R senCode(@RequestParam("phone") String phone){
        // 接口防刷
        String redisCode = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + phone);
        if(!StringUtils.isEmpty(redisCode)){
            long l = Long.parseLong(redisCode.split("_")[1]);
            if (System.currentTimeMillis() - l < 60000){
                //60秒内不能再发
                return R.error(10001,"请稍后再试");
            }
        }
        //  验证码再次检验，redis。存key-phone,value-code
        String code = UUID.randomUUID().toString().substring(0,5);
        String substring = code+"_"+System.currentTimeMillis();
        // redis缓存验证码，防止同一个phone在60s内再次发送验证码
        redisTemplate.opsForValue().set(AuthServerConstant.SMS_CODE_CACHE_PREFIX+phone,substring,10, TimeUnit.MINUTES);


        thirdPartFeignService.sendCode(phone,code);
        return R.ok();
    }

    @PostMapping("/regist")
    public String regist(@Valid UserRegistVo vo, BindingResult result, RedirectAttributes redirectAttributes){
        if(result.hasErrors()){
//            Map<String ,String> errors = new HashMap<>();
//            result.getFieldErrors().stream().map(fieldError -> {
//                String field = fieldError.getField();
//                String defaultMessage = fieldError.getDefaultMessage();
//                errors.put(field,defaultMessage);
//                return
//            })
            Map<String, String> errors = result.getFieldErrors().stream().collect(Collectors.toMap(FieldError::getField, FieldError::getDefaultMessage));
//            model.addAttribute("errors",errors);
            redirectAttributes.addFlashAttribute("errors",errors);

            //校验出错，转到注册页
            return "redirect:http://auth.yueqianshop.com/reg.html";
        }
        //真正注册，调用远程服务进行注册
        // 1.校验验证码
        String code = vo.getCode();
        String s = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
        if(!StringUtils.isEmpty(s)){
            if(code.equals(s.split("_")[0])){
                //删除验证码
                redisTemplate.delete(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());

                //验证码通过。调用远程服务进行注册
                R r = memberFeignService.regist(vo);
                if(r.getCode() == 0){
                    //成功

                    return "redirect:http://auth.yueqianshop.com/login.html";
                }else {
                    Map<String ,String> errors = new HashMap<>();
                    errors.put("msg",r.getData("msg",new TypeReference<String>(){}));
                    redirectAttributes.addFlashAttribute("errors","errors");
                    return "redirect:http://auth.yueqianshop.com/reg.html";
                }


            }else {
                Map<String ,String> errors = new HashMap<>();
                errors.put("code","验证码错误");
                redirectAttributes.addFlashAttribute("errors",errors);

                //校验出错，转到注册页
                return "redirect:http://auth.yueqianshop.com/reg.html";
            }
        }else {
            Map<String ,String> errors = new HashMap<>();
            errors.put("code","验证码错误");
            redirectAttributes.addFlashAttribute("errors",errors);

            //校验出错，转到注册页
            return "redirect:http://auth.yueqianshop.com/reg.html";
        }

    }

    @PostMapping("/login")
    public String login(UserLoginVo vo, RedirectAttributes redirectAttributes, HttpSession session){
        //远程登录
        R login = memberFeignService.login(vo);
        if(login.getCode() == 0){
            //成功
//            MemberRespVo data = login.getData("data", new TypeReference<MemberRespVo>() {});
            // 向session中保存用户数据
//            session.setAttribute(AuthServerConstant.LOGIN_USER,data);
            MemberRespVo data = login.getData("data",new TypeReference<MemberRespVo>(){});
            session.setAttribute(AuthServerConstant.LOGIN_USER,data);
            return "redirect:http://yueqianshop.com";
        }else {
            Map<String,String> errors = new HashMap<>();
            errors.put("msg",login.getData("msg",new TypeReference<String>(){}));
            redirectAttributes.addFlashAttribute("errors",errors);
            return "redirect:http://auth.yueqianshop.com/login.html";
        }
    }

    @GetMapping("/login.html")
    public String loginPage(HttpSession session){

        Object attribute = session.getAttribute(AuthServerConstant.LOGIN_USER);
        if(attribute == null){
            //没登录
            return "login";
        }else{
            return "redirect:http://yueqianshop.com";
        }
    }


}
